Roy,, A. E., & Clarke,, D. (2011). Astronomy: Principles and Practice (4.). Institute of Physics.
シカゴスタイル引用形Roy,, A E., , D. Clarke. Astronomy: Principles and Practice. 4. Bristol: Institute of Physics, 2011.
MLA引用形式Roy,, A E., , D. Clarke. Astronomy: Principles and Practice. 4. Institute of Physics, 2011.
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